Dual-mode photoluminescence, temperature sensing and enhanced ferroelectric properties in Er-doped (Ba0.4Ca0.6)TiO3 multifunctional diphase ceramics

被引：40
作者：
Chai, Xiaona [1 ]
Li, Jun [1 ]
Wang, Xusheng [1 ]
Zhao, Haifeng [1 ]
Li, Yanxia [1 ]
Yao, Xi [1 ]
机构：
[1] Tongji Univ, Key Lab Adv Civil Engn Mat, Sch Mat Sci & Engn, Funct Mat Res Lab,Minist Educ, Shanghai 201804, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2015年 / 201卷
关键词：
Ferroelectric; Multifunctional diphase ceramics; Dual-mode photoluminescence; Optical temperature sensing; UP-CONVERSION LUMINESCENCE; ELASTICO-MECHANOLUMINESCENCE; STRONG GREEN; EMISSION; FLUORESCENCE; EFFICIENCY; YB3+;
D O I：
10.1016/j.mseb.2015.06.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Dual-mode phosphors, Er3+ doped Ba0.4Ca0.6TiO3 ferroelectric diphase ceramics, were prepared by a conventional solid-state reaction method and their phases, microstructure, photoluminescence, ferroelectric and dielectric properties were investigated. The ceramics exhibit up-conversion and down-conversion emission of 550 nm light excited by a near-infrared (980 nm) light and a 487 nm blue light, respectively. The related photoluminescence mechanism has been discussed. In up-conversion emission, the H-2(11/2) -> I-4(15/2) and S-4(3/2) -> I-4(15/2) transitions of the Er3+ ion portray a temperature dependent behavior and have been used for optical temperature sensor using the fluorescence intensity ratio method. The maximum sensitivity is found to be 0.0033 K-1 at 483 K in the temperature range of 103-573 K. Together with the enhanced ferroelectric properties and good dielectric properties, these ceramics should be one of the promising candidates for multifunctional optoelectronic applications. (C) 2015 Elsevier B.V. All rights reserved.
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收藏
页码：23 / 28
页数：6
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